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Theory of BEP (Break Even Point) concept in simple Presentation Format. experience neither profit nor loss when build a business, start to return the capital. fixed variable total cost, revenue income
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Variable speed drive inverter converters
belt replacement pulley transmission on the scooter. continuously variable transmission (CVT)
Spirals. Set of various types: archimedean, geometric, rectangular, triangular, hexagonal and golden ratio. Vector editable stroke, variable line thickness. Collection of spirals for dynamic design.

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